>> And: hard tests teach better than easier ones. Yes... but grade inflation, indeed grade obsession, is so established in the US that it is quite a bold anti-

>> And: hard tests teach better than easier ones. Yes... but grade inflation, indeed grade obsession, is so established in the US that it is quite a bold anti-establishment proposal to take that road. I recall giving a quick quiz at a "quantitative literacy" course at a junior college during my US years. I dared to ask for the number of proper subsets of a set with 4 elements. We had gone over the concept of proper set, the formula (and justification) for the cardinality of the power set, and various problems. But not this very kind of problem (say, with a set of 5 elements...). I almost made the news, in a bad way. I got off the hook by reminding them that we dropped (as usual) their lowest bunch of quizzes, homework was extra credit, etc... Sigh...